Joseph g



(No Model.) I

' J. G. OHASSE.

ELECTRIC LIGHT.

Patented June 12,1883.

Zam/aA /M/ UNITED STATES PATENT OFFICE.

JOSEPH G. OHASSE, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO BENJN. FAGNANT AND MARIE ANNA BELANGER CI-IASSE, OF SAME PLACE.

ELECTRIC LIGHT.

SPECIFICATION forming part of Letters Patent No. 279,224, dated June 12, 1883.

' Application filed January .31, 1882. (No model.) I

To all whom it may concern Be it known that I, JosEPH G. CHAssE, of

Springfield, in the county of Hampden and State of Massachusetts, have made new and useful Improvements in Electric Lights and in Electric Lamps, of which the following is a specification. I

The object of my invention is to provide a cheap, neat, and easily-regu1ated electric lamp of that'class in which the light is produced within a vacuum-bulb surrounded by a liquid jacket; and it consists in certain novel combinations of devices, which will be hereinafter fully described, and pointed out in the claims. y g

The accompanying drawing is a side elevation of an electric lighting device, illustrating one practical way of carrying out my invention.

The letter 6 designates a vacuum-tube having conductingwires I) I) introduced and sealed therein, preferably by passing throughindia-rubber plugs (I, so that they may be adjusted. The vacuum may be produced in any convenient manner.

I provide the leading-wires (in alamp of this construction) with platinum tips within the tube 6, and the primary illumination is produced by a rapid succession of electric sparks passing between these tips from one to the other. These sparks could not be relied on alone to give light for practical purposes; but when the rays therefrom are subjected to the refractory and mellowing effect of a transparent or translucent liquid medium their illuminating-power is highly augmented and equalized.

The letter 0 indicates an outer or inclosing bulb or case, in the present instance formed with end extensions, a a of reduced diameter. The leading-wires b I) pass through these eX- tensions, and are sealed in the ends in any convenient manner.

passes through a plug, f, having a head, 'i, by which it maybe inserted or removed to gain access to the interior. The reduced end ex- One of them preferably tensions very much facilitate the handling of the lamp and afford passage for the leading wires, which are passed through their ends.

The liquid may be colorless or colored, sim- 'ple or compound, transparent, translucent, or

opalescent, spirituous, or otherwise. The outer case or bulb may also be transparent or otherwise. I

In applying my invention to arc-lamps, the

- double-walled bells or cylinders or globes have suitable passages for the adjustment of the pen cils.

An incandescent lamp may be made similar to that shown in the drawing, except the leading-Wires will be connected within the vacuumtube by a carbon filament, a core of platinum, or other conductor which becomes incandescent when an electric current of sufficient strength passes over it.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. The combination, with the vacuum-bulb inclosing the electrodes or illuminator, and having the leading-wires extending from the opposite ends thereof, of the outer bulb entirely surrounding said vacuum bulb, and providedwith reduced end extensions through which the leading-wires pass, and in the ends of which said wires are sealed, and the space between the two bulbs being filled with a liquid, substantially as described.

2. The vacuum-bulb 6, provided with the elastic plugs inserted in its opposite ends, and the leading-wires passing through said plugs, substantially as described, in combination with the outer bulb inclosing said vacuumbulb, and having the leading-wires passing through its ends, one of said ends being provided with a removable plug through which one of the leading-wires passes.

JOSEPH e. oHAssn.

Vitnesses ALLEN WEBs'rER, Gno. O. KINGsBURY. 

